my little mixed breed chick is foaming! its about 6-7 weeks old and was fine earlier. went out to check and it had foam/spit in its mouth. when it shook its head it flug around like a slobbery dog!! they have water and food,still eating chick starter and crop is empty,although i saw it eating this morning. when i went to feel his crop,it felt empty,but i feel something almost hard farther up in his throat. any advise or ideas? id hate to choke him by sticking anything in there,or just let him drown in his own spit!! ok help!!!